Discrete Mathematics with Applications 4th Edition

Published by Cengage Learning
ISBN 10: 0-49539-132-8
ISBN 13: 978-0-49539-132-6

Chapter 4 - Elementary Number Theory and Methods of Proof - Exercise Set 4.6 - Page 205: 8

Answer

(a) a rational number (b) an irrational number (c) $\frac{a}{b}$ (d) $\frac{c}{d}$ (e) $\frac{a}{b}-\frac{c}{d}$ (f) integers (g) integers (h) zero product property (i) a rational number

Work Step by Step

Answer may vary. Use method of contradiction, we can find the answers: (a) a rational number (b) an irrational number (c) $\frac{a}{b}$ (d) $\frac{c}{d}$ (e) $\frac{a}{b}-\frac{c}{d}$ (f) integers (g) integers (h) zero product property (i) a rational number
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